Reflection and refraction of light

Light ……plays an important role in the formation of inverted images of the objects on the road when rain falls

• velocity
• refraction
• reflection
• frequeny

Tags

NGSS.MS-PS4-2

In ……… reflection, the reflected rays are reflected in many directions

• irregular
• uniform
• regular
• total internal

Tags

NGSS.MS-PS4-2

A regular reflection happens when light rays falls in …………

• a woolen jacket
• a stainless steel sheet
• a leaf of tree
• a piece of leather

Tags

NGSS.MS-PS4-2

Light is reflected ……….. when it falls on a smooth bright surface

• regularly
• irregularly
• and refracted
• and scattered

Tags

NGSS.MS-PS4-2

Light is reflected ……….. when it falls on a rough surface

• regularly
• irregularly
• and refracted
• in one direction

Tags

NGSS.MS-PS4-2

The angle between an incident light ray and the line perpendicular to the reflecting surface at the point of incidence is called the angle of ……….

• emergence
• inidence
• refraction
• reflection

Tags

NGSS.MS-PS4-2

If the angle between the incident light ray and the reflected light ray is 90ْ , so the angle of incidence equals……. ْ

• 0ْْ
• 30ْ
• 45ْ
• 90ْ

If the angle between the relected light ray and the reflecting surface is 30ْ , so the angle of reflection will be equal to……. ْ

• 15
• 30
• 60
• 90

Tags

NGSS.MS-PS4-2

If you know that the incident light ray which falls perpendicular on a reflecting surface reflects on itself , so the angle of reflection is equal to…….ْ

• 0
• 90
• 120
• 180

Tags

NGSS.MS-PS4-2

The angle of incidence of light is ……its angle of reflection

• larger than
• smaller than
• equal to
• no correct answer

Tags

NGSS.MS-PS4-2